-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.g2d.utils;\r
-\r
-import java.io.Serializable;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class TextSegment implements Serializable {\r
-\r
- private static final long serialVersionUID = 1428883453597424952L;\r
-\r
- public static transient final TextSegment EMPTY = new TextSegment(0, 0);\r
-\r
- private final int start;\r
- private final int length;\r
-\r
- public static TextSegment whole(String s) {\r
- return new TextSegment(0, s.length());\r
- }\r
-\r
- public static TextSegment single(int pos) {\r
- return new TextSegment(pos, 1);\r
- }\r
-\r
- public static TextSegment before(int pos) {\r
- return new TextSegment(0, pos);\r
- }\r
-\r
- public TextSegment(int start, int length) {\r
- this.start = start;\r
- this.length = length;\r
- }\r
-\r
- public int start() {\r
- return start;\r
- }\r
-\r
- public int end() {\r
- return start + length;\r
- }\r
-\r
- public int length() {\r
- return length;\r
- }\r
-\r
- public boolean isEmpty() {\r
- return length == 0;\r
- }\r
-\r
- public boolean isWhole(String s) {\r
- if (s == null)\r
- return false;\r
- return start == 0 && length == s.length();\r
- }\r
-\r
- public boolean atStart(int pos) {\r
- return start == pos;\r
- }\r
-\r
- public boolean atEnd(int pos) {\r
- return end() == pos;\r
- }\r
-\r
- public boolean existsIn(String s) {\r
- int l = s != null ? s.length() : 0;\r
- if (start > l)\r
- return false;\r
- int end = start + length;\r
- if (end > l)\r
- return false;\r
- return true;\r
- }\r
-\r
- public String removeFrom(String s) {\r
- if (!existsIn(s))\r
- throw new IllegalArgumentException("segment " + this + " is out of bounds in string '" + s + "'");\r
- if (length == 0)\r
- return s;\r
- if (start == 0)\r
- return s.substring(length);\r
- return s.substring(0, start) + s.substring(start + length);\r
- }\r
-\r
- public String before(String s) {\r
- if (start == 0)\r
- return "";\r
- return s.substring(0, start);\r
- }\r
-\r
- public String after(String s) {\r
- if (end() == s.length())\r
- return "";\r
- return s.substring(start, start + length);\r
- }\r
-\r
- public String of(String s) {\r
- return s.substring(start, start + length);\r
- }\r
-\r
- public TextSegment beforeStart() {\r
- if (start == 0)\r
- return EMPTY;\r
- return new TextSegment(0, start);\r
- }\r
-\r
- public TextSegment afterEnd(String s) {\r
- int l = s.length();\r
- int end = end();\r
- if (end > l)\r
- throw new IllegalArgumentException("end " + end + " is beyond string '" + s + "'");\r
- if (end == l)\r
- return EMPTY;\r
- return new TextSegment(end, l - end);\r
- }\r
-\r
- public TextSegment prepend(int count) {\r
- if (count == 0)\r
- return this;\r
- int newStart = start - count;\r
- if (newStart < 0)\r
- throw new IllegalArgumentException("prepending " + this + " by " + count + " procudes invalid segment start " + newStart);\r
- int newLength = length + count;\r
- if (newLength < 0)\r
- throw new IllegalArgumentException("prepending " + this + " by " + count + " produces negative length: " + newLength);\r
- return new TextSegment(start - count, newLength);\r
- }\r
-\r
- public TextSegment append(int count) {\r
- if (count == 0)\r
- return this;\r
- int newLength = length + count;\r
- if (newLength < 0)\r
- throw new IllegalArgumentException("appending by " + count + " produces negative length: " + newLength);\r
- return new TextSegment(start, newLength);\r
- }\r
-\r
- public TextSegment extendToEnd(String s) {\r
- int l = s.length();\r
- int end = end();\r
- if (end > l)\r
- throw new IllegalArgumentException("end " + end + " is beyond string '" + s + "'");\r
- if (end == l)\r
- return this;\r
- return new TextSegment(start, l - start);\r
- }\r
-\r
- @Override\r
- public int hashCode() {\r
- final int prime = 31;\r
- int result = 1;\r
- result = prime * result + length;\r
- result = prime * result + start;\r
- return result;\r
- }\r
-\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (this == obj)\r
- return true;\r
- if (obj == null)\r
- return false;\r
- if (getClass() != obj.getClass())\r
- return false;\r
- TextSegment other = (TextSegment) obj;\r
- if (length != other.length)\r
- return false;\r
- if (start != other.start)\r
- return false;\r
- return true;\r
- }\r
-\r
- @Override\r
- public String toString() {\r
- return "[" + start + "," + (start + length) + "]"; \r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.g2d.utils;
+
+import java.io.Serializable;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class TextSegment implements Serializable {
+
+ private static final long serialVersionUID = 1428883453597424952L;
+
+ public static transient final TextSegment EMPTY = new TextSegment(0, 0);
+
+ private final int start;
+ private final int length;
+
+ public static TextSegment whole(String s) {
+ return new TextSegment(0, s.length());
+ }
+
+ public static TextSegment single(int pos) {
+ return new TextSegment(pos, 1);
+ }
+
+ public static TextSegment before(int pos) {
+ return new TextSegment(0, pos);
+ }
+
+ public TextSegment(int start, int length) {
+ this.start = start;
+ this.length = length;
+ }
+
+ public int start() {
+ return start;
+ }
+
+ public int end() {
+ return start + length;
+ }
+
+ public int length() {
+ return length;
+ }
+
+ public boolean isEmpty() {
+ return length == 0;
+ }
+
+ public boolean isWhole(String s) {
+ if (s == null)
+ return false;
+ return start == 0 && length == s.length();
+ }
+
+ public boolean atStart(int pos) {
+ return start == pos;
+ }
+
+ public boolean atEnd(int pos) {
+ return end() == pos;
+ }
+
+ public boolean existsIn(String s) {
+ int l = s != null ? s.length() : 0;
+ if (start > l)
+ return false;
+ int end = start + length;
+ if (end > l)
+ return false;
+ return true;
+ }
+
+ public String removeFrom(String s) {
+ if (!existsIn(s))
+ throw new IllegalArgumentException("segment " + this + " is out of bounds in string '" + s + "'");
+ if (length == 0)
+ return s;
+ if (start == 0)
+ return s.substring(length);
+ return s.substring(0, start) + s.substring(start + length);
+ }
+
+ public String before(String s) {
+ if (start == 0)
+ return "";
+ return s.substring(0, start);
+ }
+
+ public String after(String s) {
+ if (end() == s.length())
+ return "";
+ return s.substring(start, start + length);
+ }
+
+ public String of(String s) {
+ return s.substring(start, start + length);
+ }
+
+ public TextSegment beforeStart() {
+ if (start == 0)
+ return EMPTY;
+ return new TextSegment(0, start);
+ }
+
+ public TextSegment afterEnd(String s) {
+ int l = s.length();
+ int end = end();
+ if (end > l)
+ throw new IllegalArgumentException("end " + end + " is beyond string '" + s + "'");
+ if (end == l)
+ return EMPTY;
+ return new TextSegment(end, l - end);
+ }
+
+ public TextSegment prepend(int count) {
+ if (count == 0)
+ return this;
+ int newStart = start - count;
+ if (newStart < 0)
+ throw new IllegalArgumentException("prepending " + this + " by " + count + " procudes invalid segment start " + newStart);
+ int newLength = length + count;
+ if (newLength < 0)
+ throw new IllegalArgumentException("prepending " + this + " by " + count + " produces negative length: " + newLength);
+ return new TextSegment(start - count, newLength);
+ }
+
+ public TextSegment append(int count) {
+ if (count == 0)
+ return this;
+ int newLength = length + count;
+ if (newLength < 0)
+ throw new IllegalArgumentException("appending by " + count + " produces negative length: " + newLength);
+ return new TextSegment(start, newLength);
+ }
+
+ public TextSegment extendToEnd(String s) {
+ int l = s.length();
+ int end = end();
+ if (end > l)
+ throw new IllegalArgumentException("end " + end + " is beyond string '" + s + "'");
+ if (end == l)
+ return this;
+ return new TextSegment(start, l - start);
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + length;
+ result = prime * result + start;
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ TextSegment other = (TextSegment) obj;
+ if (length != other.length)
+ return false;
+ if (start != other.start)
+ return false;
+ return true;
+ }
+
+ @Override
+ public String toString() {
+ return "[" + start + "," + (start + length) + "]";
+ }
+
+}
Code Review / simantics / platform.git / blobdiff